Norbert Casteret was born in
Saint-Martory in
Haute-Garonne on 19 August 1897. His father, Henry Casteret, was a
lawyer in
Toulouse. His brothers were Roger, who died at the age of four, Jean and Martial Casteret, a
physician who accompanied his brother on some of his explorations. An all-round athlete and accomplished mountaineer, Casteret began caving in 1912, spanning the era of matches and candles into the age of electric lights. Unlike de Joly, who made caving his profession, Casteret was more the amateur adventurer (albeit a very knowledgeable one). Casteret served in the French
infantry for three years during
World War I, serving in his brother Jean's regiment. After being demobilized in 1919, he contracted the
Spanish flu. He kept the
helmet and lamp he used in the
trenches for future use in caving. Upon his return from the front, at his father's urging Casteret studied
law and became a
notary's clerk, a position he quickly abandoned. Élisabeth died on 6 May 1940 of
puerperal fever, a few days after the birth of their youngest child. Casteret died in Toulouse on 20 July 1987, at age 89. == Caving career ==